CN103040412A - Structure for motor, fan and cyclonic separation apparatus - Google Patents

Structure for motor, fan and cyclonic separation apparatus Download PDF

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Publication number
CN103040412A
CN103040412A CN2012103879168A CN201210387916A CN103040412A CN 103040412 A CN103040412 A CN 103040412A CN 2012103879168 A CN2012103879168 A CN 2012103879168A CN 201210387916 A CN201210387916 A CN 201210387916A CN 103040412 A CN103040412 A CN 103040412A
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CN
China
Prior art keywords
motor
cyclone
fan
air
separating apparatus
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN2012103879168A
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Chinese (zh)
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CN103040412B (en
Inventor
凯文·史密斯
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Black and Decker Inc
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Black and Decker Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to EP11184787.7A priority Critical patent/EP2581017B1/en
Priority to EP11184787.7 priority
Application filed by Black and Decker Inc filed Critical Black and Decker Inc
Publication of CN103040412A publication Critical patent/CN103040412A/en
Application granted granted Critical
Publication of CN103040412B publication Critical patent/CN103040412B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/10Filters; Dust separators; Dust removal; Automatic exchange of filters
    • A47L9/16Arrangement or disposition of cyclones or other devices with centrifugal action
    • A47L9/1658Construction of outlets
    • A47L9/1666Construction of outlets with filtering means
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/0081Means for exhaust-air diffusion; Means for sound or vibration damping
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/10Filters; Dust separators; Dust removal; Automatic exchange of filters
    • A47L9/16Arrangement or disposition of cyclones or other devices with centrifugal action
    • A47L9/1616Multiple arrangement thereof
    • A47L9/1641Multiple arrangement thereof for parallel flow
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/22Mountings for motor fan assemblies

Abstract

A motor, fan and cyclonic separation apparatus arrangement for a vacuum cleaner, the arrangement comprising: a motor (16) coupled to a fan (18) for generating air flow,a cyclonic separation apparatus (8) located in a path of the air flow generated by the fan,and a pre-fan filter (40) located in the path of the air flow downstream of the cyclonic separation apparatus and upstream of the fan (18), wherein the cyclonic separation apparatus comprises at least one cyclone (84) comprising: a cyclone body (85,86) with a longitudinal axis (57),an air inlet port (88) arranged tangentially through a side of the cyclone body,and an air outlet port (56) through a longitudinal end of the cyclone body, wherein the pre-fan filter (40) is arranged upon the air outlet port of the or each cyclone.

Description

The structure of motor, fan and Cyclonic separating apparatus
Technical field
The present invention relates to the structure of motor, fan and Cyclonic separating apparatus.The present invention is concrete but and not exclusively relate to the structure of the motor, fan and the Cyclonic separating apparatus that are used in the vacuum cleaner.
Background technology
As everyone knows, vacuum cleaner be used for to be collected dust and dirt, but the also known variant vacuum cleaner that can collect the Wet-dry of liquid.Typically, vacuum cleaner is expected in the living environment and uses, but they also can use in other environment such as building site or garden.Usually, they are take electric power as power, thereby comprise: motor; The fan that is connected with the output shaft of motor; The entrance that is used for foul atmosphere; Be used for the outlet of clean air; And the collection chamber that is used for dust, dirt (also may be used for liquid).The electric power that is used for motor can be provided by mains supply, and vacuum cleaner will also comprise power line in this case; Provided by removable and removable battery pack; Perhaps provided by one or more built-in rechargeable batteries, vacuum cleaner comprises also that such as plug or electric contact etc. some is used for the device that vacuum cleaner and charhing unit are coupled together in this case.When providing electric power from one of these power supplys to vacuum cleaner, the Motor Drive fan, thus via collection chamber foul atmosphere is drawn into clean air outlet along air flow path by dirty air inlet.Fan is generally centrifugal fan, although it can be impeller or screw.
Be used for the dust that foul atmosphere is carried secretly and dirt (also may be liquid) is separated and they are deposited on device in the collection chamber also setting up some along some position of air flow path.This separation device of sewage discharge can comprise bag filter, one or more filter and/or Cyclonic separating apparatus.
In the situation that separation device of sewage discharge comprises bag filter, the foul atmosphere that has entered vacuum cleaner by dirty air inlet passes bag filter.The dust that this carries foul atmosphere secretly and contamination filtrating are out and be collected in the bag filter.The material that has filtered is stayed in the bag filter, and bag filter is arranged in the collection chamber.Then, clean air passes the opposite side of bag filter and passes grid in the collection chamber under the effect of fan.Fan suction and discharge air, then, air passes the clean air outlet of vacuum cleaner from fan.
Bag filter always exists dust and dirt to pass the little risk of bag filter, and what do not expect is to allow dust and dirt by fan and cause damage.In order to reduce this potential problem, usually be provided with the fine cleaner of the grid of crossing over collection chamber, to remove any fine dust and dirt particle remaining in passing the air-flow of bag filter.This is well-known preposition fan filter.
Once in a while, except preposition fan filter, before leaving vacuum cleaner, downstream, the air-flow of fan be provided with high efficiency particulate air filter.This is in order to remove the superfine small particle of any remnants, and but it can not damage fan or motor may be harmful to domestic environment.Term " filter efficiency " relates to the relative size of the particle of being removed by filter.For example, compare with rough filter, high efficiency particulate air filter can be removed less particle from air-flow.The HEPA filter is to remove the high efficiency particulate air filter that diameter is 0.3 micron (μ m) and less superfine small particle.
The purposes of bag filter is to filter the dust be entrained in the dirty air-flow and dirt and the material that filters out is collected in the bag filter.This can little by little stop up bag filter.The volume flow rate that passes the air of vacuum cleaner little by little reduces, and the ability that vacuum cleaner picks up dust and dirt correspondingly reduces.Therefore, bag filter become full before and the performance of vacuum cleaner become unacceptable before, need to change bag filter.The volume of collection chamber must be enough large, to be worth the cost of bag filter periodic replacement.
Upright vacuum cleaners has vertical main body usually, a pair of support wheel that this vertical main body has separation device of sewage discharge, motor and fan unit, is positioned at the handle at top and is positioned at the bottom.Cleaner head is installed on the main body pivotly, and cleaner head has the dirty air inlet towards ground.The drum type brake vacuum cleaner has cylindrical-shaped main body usually, the support wheel handled that this cylindrical-shaped main body has separation device of sewage discharge, motor and fan unit and is positioned at the below.Flexible hose with cleaner head is communicated with main body.Bag filter is generally used for as the upright vacuum cleaners of separator and drum type brake vacuum cleaner, and this is to provide the inner space to be used to hold bag filter because the main body of upright vacuum cleaners and drum type brake vacuum cleaner has enough large collection chamber.
In the situation that separation device of sewage discharge comprises filter, the foul atmosphere that has entered vacuum cleaner by dirty air inlet passes filter.The dust that this carries foul atmosphere secretly and contamination filtrating out and the material that will filter stay the collection chamber of the upstream side that is arranged in filter.Sometimes, filter has additionally arranged sponge, in order to absorb any liquid of carrying secretly in the dirty air-flow.Then, under the effect of fan, clean air passes the opposite side of filter, and then, air passes the clean air outlet of vacuum cleaner from fan.
The electrodeposition substance that has filtered is blocking filter around the filter and little by little.The volume flow rate that passes the air of vacuum cleaner little by little reduces, and the ability that vacuum cleaner picks up dust and dirt correspondingly reduces.Therefore, collection chamber need to regularly empty and filter often needs cleaning to slow down this impact.Sometimes, vacuum cleaner has cleaning filtration mechanism.As selection, filter need to be removed in order to for example clean with brush or clean in dish-washing machine.
Hand-holdable formula vacuum cleaner, as its name reflects, compact, light and be used for to carry out on a small quantity or fast clean up task around the shelter.Typically, hand-holdable formula vacuum cleaner is battery-powered so that carry.
With the open EP1752076A of the application's European patent of the same name in a kind of example of hand-holdable formula vacuum cleaner of the structure with conventional motor, fan and filter has been described.This vacuum cleaner has the dirty air inlet of an end that is positioned at the foul atmosphere passage, and the foul atmosphere passage leads to the collection chamber with filter.Collection chamber is roughly cylindrical and laterally be arranged on the main body of vacuum cleaner.The foul atmosphere passage can rotate with respect to main body with collection chamber.When the vacuum cleaner is cosily gripped by the user, can regulate the foul atmosphere passage to approach narrower space.
In the situation that separation device of sewage discharge comprises Cyclonic separating apparatus, the foul atmosphere that has entered vacuum cleaner by dirty air inlet passes the Cyclonic separating apparatus with one or more cyclone separators.Cyclone separator is the combination of chamber of cylindrical cavity, taper chamber, truncated cone shape chamber or two or more mentioned kinds of hollow.Cyclone separator has swirler along its inner total length or partial-length.Swirler is generally the cylinder of hollow, and has the external diameter less than the internal diameter of whirlwind separator.
Foul atmosphere via the air intake of tangential setting enter cyclone separator and in addition the form of eddy flow around cyclone separator and circle round.Centrifugal force make dust and dirt outwards mobile with bump cyclone separator unit the side and make the dust unit and dirt and flow separation.Dust and dirt are deposited on the bottom of cyclone separator, and deposit in the collection chamber of below.Then, the inward eddy of clean air upwards gos up in cyclone separator.The effect of swirler is to collect and guide clean air by being positioned at the air outlet slit at cyclone separator top.As the optional substitute of swirler, cyclone separator can have the ventilative wall of inner cylindrical, and this ventilative wall provides the path that begins from cyclone separator for clean air.Under the effect of fan, clean air passes the clean air outlet of vacuum cleaner from cyclone separator.
Similar with the situation with bag filter, the vacuum cleaner with Cyclonic separating apparatus can have preposition fan filter with protection fan and motor, particularly in the situation that air-flow is used for cool motors.Yet, along with the electrodeposition substance that separates in collection chamber, it is constant that the volume flow rate of the air of the vacuum cleaner of flowing through almost keeps.Therefore, the attractive spot of the Cyclonic separating apparatus in the vacuum cleaner is to pick up the constant ability of dust and dirt.Another attractive spot has been to exempt the cost of periodic replacement bag filter.
In the open EP0042723A of European patent, a kind of example with upright vacuum cleaners of motor, fan and Cyclonic separating apparatus has been described.This Cyclonic separating apparatus is divided into: the first cyclone type separative element, and it has the cyclone separator that is formed by annular compartment; And the second cyclone type separative element, it has the roughly cyclone separator of truncated cone shape.The first cyclone type separative element is connected with the second cyclone type separative element by passage.Air flow through successively the first cyclone type separative element and the second cyclone type separative element.The diameter of truncated cone shape cyclone separator is less than the diameter of annular compartment, and the truncated cone shape cyclone separator partly is embedded in annular compartment.The material that has separated from two cyclonic separation unit is collected in the cylindrical shape collection chamber of the bottom that is formed at annular compartment.
Term " separative efficiency " uses in the mode identical with filter efficiency, and " separative efficiency " relates to the relative ability that Cyclonic separating apparatus is removed small particle.For example, compare with poor efficiency cyclonic separation unit, the efficient cyclone separative element can be removed less particle from air-flow.The factor that affects separative efficiency can comprise the cone angle of any frustoconical part of size, cyclone separator of the clean air outlet of the size of dirty air inlet of cyclone separator and inclination angle, cyclone separator and diameter and the length of cyclone separator.
The cyclone separator of minor diameter has the separative efficiency higher than large diameter cyclone separator usually, although other factors listed above may have impact of equal importance.
The first cyclone type separative element of EP0042723A has than the low separative efficiency of the second cyclone type separative element.The first cyclone type separative element separates larger dust and dirt from air-flow.This is so that the second cyclone type separative element acts on the air-flow of relative cleaning under its optimum condition, and dust that will be less and dirt separation go out.
In the open No.GB2440110A of BP, a kind of hand-holdable formula vacuum cleaner with motor, fan and Cyclonic separating apparatus has been described.This Cyclonic separating apparatus is less than the Cyclonic separating apparatus among the EP0042723A, so that be applied in the hand-holdable formula vacuum machine.This cyclone separator is divided into the first cyclone type separative element and is positioned at the second cyclone type separative element in the downstream of the first cyclone type separative element.The separative efficiency of the first cyclone type separative element is lower than the separative efficiency of the second cyclone type separative element.
Summary of the invention
The structure that the purpose of this invention is to provide a kind of motor, fan and Cyclonic separating apparatus, this structure can effectively utilize its occupied space more, produces simultaneously less noise.Another object of the present invention provides a kind of vacuum cleaner that comprises this structure.Effectively utilizing the space is desirable feature, and this is because any space that is wasted all can increase the overall size of vacuum cleaner and any counteracting benefit can be provided.The noise decrease level all is attractive feature concerning being used in any product around the shelter, and this feature application is in the vacuum cleaner with motor, and wherein the Motor Drive fan is to produce mass air flow.
Therefore, in first aspect, the invention provides the structure of a kind of motor for vacuum cleaner, fan and Cyclonic separating apparatus, this structure comprises: motor, and it engages with fan for generation of air-flow; Cyclonic separating apparatus, it is arranged in the path of the air-flow that is produced by fan; And preposition fan filter, the upstream that it is positioned at the downstream of Cyclonic separating apparatus and is positioned at fan, wherein Cyclonic separating apparatus comprises at least one cyclone separator, cyclone separator comprises: cyclone body, it has longitudinal axis; Air intake, it is arranged to tangentially pass a side of cyclone body; And air outlet slit, it passes the longitudinal end of cyclone body, and wherein preposition fan filter is positioned at above the air outlet slit of described or each cyclone separator.
The present invention is placed on preposition fan filter the position that directly is communicated with the air outlet slit of Cyclonic separating apparatus.By exempting any pipeline between preposition fan filter and air outlet slit, provide more compact structure.Preposition fan filter is arranged on the contacted position of air outlet slit can has such effect: be suppressed at the high-frequency sound that air stream produces because of helmholtz resonance when air outlet slit.This helps to reduce the overall noise that vacuum cleaner produces in use.In addition, the total length near arranging the air flow path by shortening this structure of preposition fan filter and air outlet slit has reduced energy loss.
Preferably, air outlet slit described or each cyclone separator passes the swirler of the correspondence that is arranged on cyclone body inside, and swirler comprises the vertical internal rib that is arranged to around the array of the inner surface of swirler, and vertically internal rib is set to the axis almost parallel with cyclone body.Longitudinal rib can further suppress the high-frequency noise that caused by helmholtz resonance.Longitudinal rib can also reduce energy loss further by enter the air-flow in the auxiliary aligning swirler before the preposition fan filter at air-flow.
Preferably, Cyclonic separating apparatus comprises: the first cyclone type separative element, and it comprises general cylindrical shape waste rexeptacle and the air intake of hollow, and this waste rexeptacle has central axis, and this air intake is arranged to tangentially pass a side of waste rexeptacle; And the second cyclone type separative element, it comprises at least one cyclone separator, wherein said or each cyclone separator comprises discharge nozzle, discharge nozzle is arranged on the longitudinal end opposite with air outlet slit of cyclone body, the second cyclone type separative element receives air-flow in the downstream of the first cyclone type separative element, and the second cyclone type separative element and preposition fan filter are positioned at the inside of waste rexeptacle.Cyclone formula separator is by separating the cleaning that has improved foul atmosphere at the particle that has between the cyclone type separative element of variable separative efficiency jointly different size.The inside that preposition fan filter is arranged on waste rexeptacle provides more compact structure, the result, owing to need to not be preposition fan filter slot milling in the main body of vacuum cleaner, therefore so that vacuum cleaner is compacter.
Preferably, at least one cyclone separator comprises a plurality of cyclone separators that are arranged to around the circular array of the central axis of waste rexeptacle, and preposition fan filter has the ring section profile perpendicular to the central axis of waste rexeptacle, wherein Cyclonic separating apparatus comprises the cooling blast path of the circular array that is arranged in cyclone separator, and motor is embedded in the circular array of cyclone separator and motor is arranged in the cooling blast path.Compare with occupy the larger-diameter single cyclone separator of having of same space in waste rexeptacle, the cyclone separator circular array can have higher separative efficiency.The present invention can use the space in the circular array that naturally is present in cyclone separator more effectively.Motor is positioned among the cyclone separator, rather than motor occupies the space of other parts.Motor is subject to cooling off to move in limited space.The structure that obtains is compact, the result, owing to need to the other parts in the main body of vacuum cleaner do not reserve space for motor, therefore so that vacuum cleaner is compacter.
Preferably, the part of motor is embedded in the ring section profile of the preposition fan filter of annular.Because motor occupies the original space that is not used of annular preposition fan filter inside, thereby more compact structure is provided.
Preferably, a plurality of cyclone separators are at least eight cyclone separators that are arranged to have the circular array of interior ring and outer shroud, wherein in the diameter of ring be outer shroud diameter at least 30%.This can provide cyclone separator with suitable diameter carrying out effective vacuum cleaning, thereby and can provide enough spaces to produce enough air-flows with the motor drive fan of holding suitable dimension in circular array.
Preferably, the circular array of cyclone separator is axially symmetrical and motor is concentric with central axis.Because each parts is arranged equably around central axis, and therefore compacter Cyclonic separating apparatus is provided.
Preferably, motor be used for enhanced flow and engage through the servicing unit of the cooling-air in cooling blast path.Electronic employing in the cooling of assisting himself.The highest and need most when cooling just when motor operation intensity, can strengthen the cooling blast that passes the cooling blast path.
Preferably, the external diameter of motor be waste rexeptacle external diameter at least 15%.This provides enough large waste rexeptacle separating and to collect larger dirt particle, and provides and be used for the sufficient space of the circular array of cyclone separator, and the motor with suitable dimension produces enough air-flows with drive fan.
Preferably, the second cyclone type separative element has than the high separative efficiency of the first cyclone type separative element.In waste rexeptacle, separate at first the bulky grain thing, then separate with high efficiency cyclone separator and more be difficult to the small particle that separates.
Preferably, Cyclonic separating apparatus comprises the midfeather that is arranged in the waste rexeptacle, and wherein midfeather surrounds the air intake of cyclone separator.Midfeather separates the dirty stream swirl in air intake and the cylindrical shape waste rexeptacle.This helps avoid the air-flow that flows to cyclone separator and again carries dirt secretly.
Preferably, midfeather limits the chamber with ventilative wall, and ventilative wall cloth is put the air outlet slit as the first cyclone type separative element, and the second cyclone type separative element receives air-flow in the downstream of the first cyclone type separative element via chamber.The cleaned air of part is passing before ventilative wall arrives air intake, flows into backward in the slight inward eddy and around midfeather.Ventilative wall the extra contamination filtrating stage is provided and will filter after dirt be deposited on benefit in the waste rexeptacle.Chamber allows air to pass Clearance Flow between cyclone separator and the motor distributing himself, and flows to the air intake of cyclone separator.
Preferably, the deposition of material that the first cyclone type separative element and the second cyclone type separative element are arranged to go out from flow separation is the longitudinal end of waste rexeptacle, wherein Cyclonic separating apparatus comprises the funnel that is arranged to collect the material that is separated by cyclone separator, and funnel has the cone-shaped wall towards the waste rexeptacle convergent, and with will be by deposition of material that cyclone separator was separated in the following zone of waste rexeptacle: described zone be by funnel and isolated with the air-flow in the first cyclone type separative element.Collect together and empty the isolated little dirt of institute and large dirt, thereby so that Cyclonic separating apparatus is convenient.Compare with the larger dirt particle that occupies more spaces, conical hopper with little dirt particle be deposited in the waste rexeptacle than in the zonule.This structure helps to prolong the blanking time that empties waste rexeptacle by the filling rate of balance waste rexeptacle.
In second aspect, the invention provides a kind of vacuum cleaner that comprises the structure of the motor according to first aspect, fan and Cyclonic separating apparatus.Because this vacuum cleaner has benefited from the feature of structure of motor, fan and the Cyclonic separating apparatus of first aspect, so this vacuum cleaner can have the noise level of compacter design and reduction.
Preferably, vacuum cleaner is the battery powered hand-holdable formula vacuum cleaner that comprises detachable battery and/or rechargeable battery.This structure provides can easily carry and easy to use and need not the vacuum cleaner of mains supply.Preferably, Cyclonic separating apparatus comprises at least one outstanding lip, and the material that this at least one outstanding lip is arranged to hinder separation moves from the longitudinal end of waste rexeptacle.This helps avoid the air-flow that leads to cyclone separator and again carries the dirt of separation secretly.Preferably, waste rexeptacle comprises the outer wall of general cylindrical shape and is positioned at the end wall of circular of the longitudinal end of this outer wall, and wherein air intake is arranged to tangentially to pass outer wall and end wall removably is connected with outer wall.This dismountable end wall is conducive to empty the dirt in the waste rexeptacle.Preferably, end wall is connected with outer wall so that end wall can not misplace after opening by hinge.Preferably, the plane of discharge nozzle is with respect to the longitudinal axis of cyclone body and tilt.This material that helps avoid separation enters discharge nozzle again.Preferably, the central axes of the longitudinal axis of each cyclone separator and Cyclonic separating apparatus.Preferably, the longitudinal axis of each cyclone separator is parallel with the central axis of Cyclonic separating apparatus.Preferably, fan is the centrifugal fan with tangential outlet.Preferably, no more than 16 cyclone separators of a plurality of cyclone separators.More preferably, no more than 14 cyclone separators of a plurality of cyclone separators.Preferably, a plurality of cyclone separators are no less than eight cyclone separators.More preferably, a plurality of cyclone separators are no less than ten cyclone separators.Most preferably, a plurality of cyclone separators are 12 cyclone separators.Preferably, the external diameter of waste rexeptacle is not more than 28:3 with the ratio of the external diameter of each cyclone separator.More preferably, the external diameter of waste rexeptacle is not more than 24:3 with the ratio of the external diameter of each cyclone separator.Preferably, the external diameter of waste rexeptacle is not less than 12:3 with the ratio of the external diameter of each cyclone separator.More preferably, the external diameter of waste rexeptacle is not less than 16:3 with the ratio of the external diameter of each cyclone separator.Most preferably, the ratio of the external diameter of waste rexeptacle and the external diameter of each cyclone separator is about 20:3.
Preferably, vacuum cleaner comprises the handled main body of tool and dirt air duct, and this dirt air duct is arranged in the air flow path of Cyclonic separating apparatus upstream.Alternatively, vacuum cleaner comprises the flexible hose of the air flow path that is arranged in the Cyclonic separating apparatus upstream.Alternatively, vacuum cleaner comprises elongate body, and this elongate body at one end has handle and has cleaner head in end opposite, and wherein cleaner head is arranged in the air flow path of Cyclonic separating apparatus upstream.Preferably, vacuum cleaner comprises at least one support wheel, and this at least one support wheel is used at this vacuum cleaner of floor upper support, and wherein this at least one support wheel is around the central axis rotation of Cyclonic separating apparatus.Cyclonic separating apparatus is orientated as near the floor to be shortened so that this Cyclonic separating apparatus is communicated with the fluid of cleaner head thereupon.This structure has reduced energy loss by the total length that reduces air flow path.Preferably, at least one support wheel limits the cylinder that surrounds waste rexeptacle.Cyclonic separating apparatus additionally serves as the wheel shaft of this support wheel, thereby so that vacuum cleaner is compacter and reduced the quantity of parts.Preferably, elongate body can telescopically elongation so that this main body can extend to use and retract to leave in narrower place.Alternatively, vacuum cleaner is the blower as the outdoor garden instrument, and this blower can be used in and purges the garden chip collecting, and serves as the garden chip is sucked vacuum cleaner in the container.
Description of drawings
With reference to the following explanation that provides in the mode of example and by reference to the accompanying drawings, will be better understood other features and advantages of the present invention, in the accompanying drawings:
Fig. 1 illustrate have motor, the perspective view of the first embodiment of the hand vacuum cleaner of the structure of fan and Cyclonic separating apparatus;
Fig. 2 illustrates the longitudinal section of the structure of motor, fan and Cyclonic separating apparatus among Fig. 1;
Fig. 3 illustrates the perspective view of the longitudinal section among Fig. 2;
Fig. 4 illustrates the decomposition diagram of structure of motor, fan and the Cyclonic separating apparatus of Fig. 1;
Fig. 5 illustrates the decomposition diagram of the internal part of the Cyclonic separating apparatus among Fig. 1;
Fig. 6 illustrates the decomposed perspective view of the structure of motor, fan and Cyclonic separating apparatus among Fig. 1;
Fig. 7 illustrates the perspective view of structure of the end cap of the Cyclonic separating apparatus among Fig. 1;
Fig. 8 illustrates the perspective view of the swirler assembly of the Cyclonic separating apparatus among Fig. 1;
Fig. 9 A to Fig. 9 H illustrates the longitudinal section among Fig. 2, comprises the air flow path that passes in use motor, fan, Cyclonic separating apparatus and motor cooling passage;
Figure 10 illustrate have motor, the perspective view of the second embodiment of the hand vacuum cleaner of the structure of fan and Cyclonic separating apparatus;
Figure 11 illustrates the perspective view among Figure 10 of a part that has removed main body;
Figure 12 illustrates the longitudinal section of the Cyclonic separating apparatus among Figure 10;
Figure 13 illustrates the perspective view in the cross section among Figure 12;
Figure 14 illustrates the longitudinal section of the structure of motor, fan and Cyclonic separating apparatus among Figure 10;
Figure 15 illustrates the decomposition diagram of the structure of motor, fan and Cyclonic separating apparatus among Figure 10;
Figure 16 illustrates the decomposition diagram of the internal part of the Cyclonic separating apparatus among Figure 10;
Figure 17 A to Figure 17 F illustrates the longitudinal section among Figure 12, comprises the air flow path of the structure of passing in use Cyclonic separating apparatus;
Figure 18 to Figure 22 illustrates the heteroid schematic diagram of the Cyclonic separating apparatus among Figure 10;
Figure 23 illustrate have motor, the perspective view of the 3rd embodiment of the hand vacuum cleaner of the structure of fan and Cyclonic separating apparatus;
Figure 24 illustrates the perspective view without the vacuum cleaner among Figure 23 of waste rexeptacle wall;
Figure 25 illustrates the perspective view of swirler;
Figure 26 illustrates the perspective view with the vacuum cleaner among Figure 23 of transparent waste rexeptacle wall;
Figure 27 illustrates the diagram cross section XXVI-XXVI that comprises air flow path of the vacuum cleaner among Figure 26;
Figure 28 illustrates the diagram cross section XXVII-XXVII that comprises air flow path of the vacuum cleaner among Figure 27;
Figure 29 illustrates the side view of the battery-operated type vacuum cleaner of the structure with motor, fan and Cyclonic separating apparatus among tensile foul atmosphere passage and Fig. 2 to Fig. 9;
Figure 30 illustrates the perspective view of the vacuum cleaner among Figure 29;
Figure 31 illustrates the cutaway view of the part of the vacuum cleaner among Figure 29, wherein shows battery pack;
Figure 32 illustrates the perspective view of the vacuum cleaner among Figure 29 that the foul atmosphere passage is in elongation state;
Figure 33 illustrates the side view of battery-operated type vacuum cleaner of the structure of the motor, fan and the Cyclonic separating apparatus that have among flexible hose and Fig. 2 to Fig. 9;
Figure 34 illustrates the perspective view of the vacuum cleaner among Figure 33;
Figure 35 illustrates the perspective view of the battery-operated type vacuum cleaner with extension type main body and cleaner head, and this vacuum cleaner has the structure of motor, fan and Cyclonic separating apparatus among Fig. 2 to Fig. 9;
Figure 36 illustrates the enlarged perspective of the vacuum cleaner among Figure 35;
Figure 37 illustrates the side view of the vacuum cleaner among Figure 35 that the extension type main body retracted;
Figure 38 illustrates detachable battery group among Fig. 2 to Fig. 9 and the perspective view of Cyclonic separating apparatus;
Figure 39 illustrates the cross section XXXVIII-XXXVIII of the battery pack among the Figure 38 with cylindrical shape rechargeable battery;
Figure 40 illustrates the cross section XXXVIII-XXXVIII of the battery pack among the Figure 38 with tabular rechargeable battery;
Figure 41 illustrates the cross section of the annular battery group with cylindrical shape rechargeable battery;
Figure 42 and Figure 43 illustrate the cross section of the annular battery group with tabular rechargeable battery; And
Figure 44 illustrate from Fig. 2 in the form of the relevant test data of the temperature of motor under different operating conditions.
The specific embodiment
With reference to figure 1, wherein show the first embodiment of hand vacuum cleaner 2, this hand vacuum cleaner 2 comprises: main body 4; Handle 6, it is connected with main body 4; Cyclonic separating apparatus 8, it is installed on the main body and laterally strides across main body; And the foul atmosphere path 10, the one end has dirty air inlet 12.Vacuum cleaner comprises: motor, and it engages with fan, and this fan is for generation of the air-flow of the vacuum cleaner of flowing through; And the rechargeable battery (not shown), it provides electric energy to motor when being connected with electric electromechanics by ON/OFF (on/off) switch 14.
Referring to figs. 2 to Fig. 8, wherein show the structure that comprises motor 16, fan 18 and Cyclonic separating apparatus 8.Motor has driving shaft 20, and driving shaft 20 has central axis 21.Fan is centrifugal fan 18, and fan has towards the axial entrance 22 of motor and tangentially exports 24.The diameter of fan is 68mm.Fan is installed on the driving shaft that is positioned at the motor top.In use, the Motor Drive fan produces the air-flow of the Cyclonic separating apparatus of flowing through, and will be explained in more detail this hereinafter.The sub-fraction of driving shaft 20 is outstanding from the bottom of motor 16.Driving shaft 20 in the bottom that is positioned at motor is equipped with the second fan, and the second fan comprises paddle wheel 26.Motor and paddle wheel are inserted in the outer main body of the cylindrical shape motor that is commonly called " motor tank (motor can) ".In use, motor makes the paddle wheel rotation, so that the airflow circulating of motor tank inside and motor bottom periphery and enhancing.
Motor 16 and fan 18 are contained in the electrical motor fan housing 27, and electrical motor fan housing 27 comprises: the main part 28 of general cylindrical shape, and it surrounds motor; And the head 29 of circular, it surrounds fan.The diameter of head 29 is greater than the diameter of main part 28.Electrical motor fan housing 27 comprises end cap 30 with holes, and it is installed on the side opposite with head of main part.End cap 30 protection fans.End cap has the eyelet 36 that is arranged to circular array, and air-flow is discharged fan near the eyelet 36.Head as guiding from fan and leave the deflector of the air-flow of eyelet.Main part has: be arranged to the base channel 32 of array, its bottom around motor is arranged; And the top slot 34 that is arranged to array, it is positioned at driving shaft 20 around outstanding position, the top of motor.
Cyclonic separating apparatus 8 comprises the inwall 60, cyclone separator seal 70, cyclone separator component 80, columnar midfeather 90 with holes, circular dividing plate 100, conical hopper 110 of the preposition fan filter 40 arranged around the central axis 21 of motor drive shaft 20, swirler assembly 50, general cylindrical shape, waste rexeptacle 120 and the circular bowl-shape door 130 of transparent general cylindrical shape.
Preposition fan filter 40 is around the annular shape of the top stream groove 34 of the main part 28 of electrical motor fan housing 27.Except preposition fan filter was communicated with part and preposition fan filter and the top stream groove 34 of main part 28 is communicated with part with swirler assembly 50, preposition fan filter was contained in the circular casing 42.This is so that from the preposition fan filter of the airflow passes of Cyclonic separating apparatus and flow on the fan.
Swirler assembly 50 comprises planar rings 52, is molded with 12 hollow circle tube swirlers 54 on this planar rings 52, and these swirlers 54 are one side-prominent from planar rings 52.The hole 56 of passing swirler penetrates the opposite side of planar rings, namely is provided with a side of preposition fan filter 40.Preposition fan filter 40 helps to be suppressed at the high-frequency sound that air stream causes because of helmholtz resonance (Helmholtz resonance) when swirler hole 56.Swirler is arranged to around the circular array of the central axis 21 of motor drive shaft 20.Each swirler has the longitudinal center's axis 57 of himself, and this longitudinal center's axis 57 is set to parallel with central axis 21.Swirler can have the vertical internal rib (not shown) along the swirler hole, in order to further reduce the high-frequency noise that causes because of helmholtz resonance.Longitudinal rib also trends towards the air-flow in swirler aligning, so that the energy loss when helping to reduce air and flowing into preposition fan filter 40.
Inwall 60 is divided into the different two parts of diameter, and each part is the general cylindrical shape shape.Inwall comprises: annular flange flange 62, and it is positioned at the open end of inwall; The cylindrical cup 64 of hollow, it is positioned at the blind end opposite with open end of inwall; The cylindrical wall 66 of hollow; And annular shoulder 68.Flange extends radially outwardly from the open end of cylindrical wall.Cylindrical wall is between flange and cylindrical cup.The diameter of cylindrical wall is greater than the diameter of cylindrical cup.Annular shoulder connects together cylindrical wall with cylindrical cup.Shoulder is equipped with 69, ten two holes, 12 holes 69 that are arranged to circular array and arranges around central axis 21 equi-angularly space ground.Annular flange flange 62 is connected with the annular upper wall 121 of waste rexeptacle 120.
Swirler assembly 50 bearings are in cylindrical wall 66, and planar rings 52 is passed the hole 68 of shoulder towards shoulder 68 and swirler 54 projections.Preposition fan filter 40 is embedded in cylindrical wall 66.The bottom of the main part 28 of electrical motor fan housing is embedded in cylindrical cup 64.
Cyclone separator seal 70 is equipped with 72, ten two holes, 12 holes 72 that are arranged to circular array and arranges around central axis 21 equi-angularly space ground.Shoulder 68 bearings of inwall 60 are on the cyclone separator seal.The hole 72 of seal is passed in swirler 54 projections.
Cyclone separator component 80 comprises cylindrical shape ring 82 and 12 cyclone separators 84 that are arranged to circular array that surrounded by this ring.Cyclone separator is arranged around central axis 21 equi-angularly space ground.Each cyclone separator has: the cylindrical shape top of hollow divides 85; And the frustoconical base of hollow divides 86, and it divides 85 to hang down and end at the discharge nozzle 87 that is positioned at the cyclone separator bottom from the cylindrical shape top.
The shoulder 68 of inwall 60 is arranged on the cyclone separator component 80 across cyclone separator seal 70.The external diameter of ring 82 external diameter and the cylindrical wall 66 of inwall 60 is identical and encircle 82 butt cylindrical walls 66.The cylindrical shape top that swirler 54 projections are passed the hole 72 of cyclone separator seal and projected into corresponding cyclone separator 84 is divided in 85.Pass unique its swirler 54 of passage process at the top of cyclone separator 84, swirler 54 is as the air stream outlet that leads to preposition fan filter 40.Each swirler cyclone separator corresponding with it is concentric.The plane of each nozzle 87 tilts with respect to central axis 57.This helps to prevent that dust and dirt particle from entering nozzle again after nozzle is discharged.
The cylindrical shape top of each cyclone separator 84 divides 85 to have air intake 88, and air intake 88 is set to tangentially pass a side of cyclone separator and near swirler 54.12 air intakes be positioned at ring 82 belows and be communicated with around the dispensed chambers 170 of cyclone separator 84, will be explained in more detail this hereinafter.
Midfeather 90 is arranged on the cyclone separator component 80.Identical and the midfeather 90 butt cylindrical shape rings 82 of the external diameter of the external diameter of midfeather 90 and cylindrical shape ring 82.
Dividing plate 100 be arranged on the midfeather 90 and the diameter of the diameter of dividing plate 100 and midfeather 90 roughly the same.Dividing plate 100 is equipped with 102, ten two holes, 12 holes 102 that are arranged to circular array and arranges around central axis 21 equi-angularly space ground.Corresponding partition board hole 102 is passed in discharge nozzle 87 projections of cyclone separator 84.Dividing plate 100 has from central axis 21 towards bowl-shape 130 circumferential lip 104 that radially outward tilts.Lip 104 slightly protrudes from midfeather 90.
Conical hopper 110 comprises the circumferential skirt portion 112 of hollow, the truncated cone shape tapering 114 of hanging down from the skirt section and the cylindrical nose portion 116 of the hollow that hangs down from the tapering.The skirt section be arranged on the dividing plate and the external diameter of the external diameter in skirt section and dividing plate roughly the same.The tapering from dividing plate 100 towards bowl-shape door 130 convergent radially inwardly.The perforated portion 118 in skirt section is axially outstanding backward towards bowl-shape door 130 from the tapering.
The waste rexeptacle 120 of general cylindrical shape comprises: annular upper wall 121; And the cylindrical outer wall 122 of hollow, it has the truncated cone shape dirt-collecting bowl 124 that hangs down from outer wall 122.Waste rexeptacle has the dirty air inlet 126 that is set to tangentially pass outer wall 122.Waste rexeptacle 120 has towards central axis 21 and towards bowl-shape 130 circumferential lip 128 that radially inwardly tilts.This lip 128 is slightly inwardly outstanding from the transition region between outer wall and the dirt-collecting bowl.The head 29 of electrical motor fan housing is embedded the central authorities in annular upper wall 121.Annular upper wall removably is connected with the periphery 138 of outer wall 122.Annular upper wall 121 can by fasten, engaging, interlocking claw, interference fit or are connected with inwall by hinge and outer wall 122 be connected.Be provided with the elastic sealing element of being made by polyethylene, rubber or similar elastomeric material around annular upper wall, to guarantee being tightly connected of annular upper wall and outer wall.
Bowl-shape door 130 removably is connected with the outer peripheral edges 132 of dirt-collecting bowl 124.Bowl-shape door butt cylindrical nose portion 116, thus the dirt-collecting bowl is divided into two independently chambers: be positioned at the chamber 134 of circular of conical hopper 110 inside and the chamber 162 that is positioned at the general toroidal of conical hopper outside.Bowl-shape door 130 can by fasten, engaging, interlocking claw, interference fit or be connected with dirt-collecting bowl 124 by hinge.Be provided with the elastic sealing element of being made by polyethylene, rubber or similar elastomeric material around bowl-shape door 130, to guarantee being tightly connected of bowl-shape door 130 and dirt-collecting bowl.
The annular flange flange 62 of inwall 60 and the relation that has complementary fit from the interior side-prominent annulus 123 of annular upper wall 121.Nose 116 and the relation that has complementary fit from bowl-shape 130 interior side-prominent annulus 140.This has guaranteed that the parts of Cyclonic separating apparatus 8 when bowl-shape door is closed and central axis 21 keep concentric.
Between annular upper wall 121 and bowl-shape door 130, the different parts of Cyclonic separating apparatus 8 (that is: preposition fan filter 40, swirler assembly 50, inwall 60, cyclone separator seal 70, cyclone separator component 80, midfeather 90, dividing plate 100, conical hopper 110) are arranged on each other by removably connecting to be gone up, and described removably connecting typically is fastening, engaging, interlocking claw or interference fit.This allow in the situation that not tool using with Cyclonic separating apparatus 8 dismountings or re-assembly, so that cleaning or change the separate part of Cyclonic separating apparatus 8.Be provided with by polyethylene, rubber or similar elastomeric material, the elastic sealing element of perhaps being made by other suitable encapsulants around the connecting portion between annular flange flange 62 and circular casing 42 and the annular upper wall 121.These elastic sealing elements have been guaranteed to be tightly connected.The internal diameter of waste rexeptacle 120 and bowl-shape door 130 is enough large, thereby can remove via arbitrary end of waste rexeptacle parts (that is: preposition fan filter 40, swirler assembly 50, inwall 60, cyclone separator seal 70, cyclone separator component 80, midfeather 90, dividing plate 100, conical hopper 110) with Cyclonic separating apparatus 8.
In use, dirty air-flow flows into dirty air inlet 12 under the effect of fan 18, and pass the foul atmosphere path 10 and flow into Cyclonic separating apparatus 8, in Cyclonic separating apparatus 8, the dust of carrying secretly in the air-flow and dirt and flow separation.Dust and dirt are collected in the Cyclonic separating apparatus.Air flows out from Cyclonic separating apparatus 8, passes preposition fan filter 40, via top slot 34 inflow motor blower-castings 27, passes fan 18 and 36 outflows of the eyelet from end cap 30.
With reference to figure 9A, Cyclonic separating apparatus 8 is divided into the first cyclone type separative element 160, the second cyclone type separative element 150 and dispensed chambers 170.The first cyclone type separative element is arranged in the air flow path of dispensed chambers upstream.Dispensed chambers is arranged in the air flow path of the second cyclone type separative element upstream.
The first cyclone type separative element 160 comprises cylindrical shape waste rexeptacle 120.The second cyclone type separative element 150 comprises 12 cyclone separators 84 that are arranged to circular array.Waste rexeptacle is concentric with the central axis 21 of motor drive shaft 20.Dispensed chambers 170 is limited by cylindrical cup 64, cyclone separator component 80, midfeather 90 and the dividing plate 100 of the hollow of inwall.The air-flow that the second cyclone separator unit 150 receives from the first cyclone separator unit 160 via dispensed chambers 170.
The diameter of the outer wall 122 of waste rexeptacle 120 is about 130mm.The diameter of cyclone separator 84 is more much smaller than the diameter of waste rexeptacle.Spiral helicine air-flow is subject in cyclone separator than centrifugal force larger in annular compartment.Therefore, the cyclone separator of the second cyclone type separative element 150 has the separative efficiency higher than the waste rexeptacle of the first cyclone type separative element 160 when combination.
With reference to figure 9B to Fig. 9 E the air flow path that passes Cyclonic separating apparatus 8 is described in more detail.
With reference to figure 9B, foul atmosphere (three arrows) flows into the first cyclone type separative element 160 via dirty air inlet 126.The cutting orientation structure of dirty air inlet 126 is so that foul atmosphere is mobile along the helical-like path around cylindrical shape waste rexeptacle 120.This has produced outer eddy flow in waste rexeptacle.Centrifugal force make relative to large dust and dirt particle outwards move with the bump waste rexeptacle the side and make relative large dust and dirt particle and flow separation.The dust that separates and dirt (D) move and are deposited in the dirt-collecting bowl 124 towards 124 convolutions of dirt-collecting bowl.
With reference to figure 9C, adverse current occurs in the cleaned air (double-headed arrow) self of part, flows around the inside spin first class footpath of conical hopper and towards columnar midfeather 110 to follow closely.The flow through perforated portion 118 in skirt section 112 of conical hopper of the cleaned air of part substantially unblockedly.The circumferential lip 104 of dividing plate 100 and the lip 128 of waste rexeptacle 120 are converted into width restriction X in the first cyclone type separative element 160.This width restriction has reduced at least 15% with the radial width between waste rexeptacle and the midfeather.The restriction of this width is towards bowl-shape door 130 and convergent, is more prone to so that air and the dirt carried secretly thereof can move than direction towards the opposite towards the movement of bowl-shape door.Therefore, circumferential lip 104,128 captured the dirt that separates in the bowl 124 before the dirt that the separates air-flow cleaned by part carried secretly again with the perforated portion 118 in the skirt section 112 of conical hopper.The cleaned air stream of part in midfeather eyelet and flow into dispensed chambers 170, this midfeather filters the large dirt particle of any remnants.
Can find out in Fig. 5, the air intake 88 of 12 cyclone separators is molded in the ring 82 of cyclone separator component 80.Dispensed chambers 170 is communicated with the air intake 88 of 12 cyclone separators 84.With reference to figure 9D, in dispensed chambers, the cleaned air-flow (double-headed arrow) of part is divided equally himself between 12 air intakes 88, and flows in 12 cyclone separators 84 of the second cyclone type separative element 150 from these 12 air intakes 88.The cleaned air of air intake 88 leaders centers on swirler 54 along helical-like path and flows.This has produced outer eddy flow in each cyclone separator 84 inside.Centrifugal force make dust and dirt outwards mobile with the bump cyclone separator the side and make dust and dirt and flow separation.The dust that separates and dirt are mobile towards discharge nozzle 87 convolutions.The internal diameter of the frustoconical part 86 of cyclone separator is along with air-flow reduces near nozzle.This accelerates the external spiral air-flow, has increased thus centrifugal force and isolate less dust and dirt particle from air-flow.Dust and dirt particle leave nozzle with in the part that is limited by conical hopper 110 that is deposited on bowl 124.
With reference to figure 9E, adverse current self occurs in clean air (single head arrow), directly passes the middle part of cyclone separator 84 to follow narrow inside spin first class.Under the effect of fan, clean air flows out and flows into preposition fan filter 40 from the internal holes 56 of swirler 54.Preposition fan filter 40 is removed through any tiny dust and dirt particle remaining in the air-flow after the Cyclonic separating apparatus 8.
Preposition fan filter is communicated with electrical motor fan housing 27.The air of cleaning flows into the axial entrance 22 of fans 18 via the top slot 34 in the electrical motor fan housing, flow out the tangential outlet 24 of fan and pass the eyelet 36 of end cap 30, discharges from vacuum cleaner 2 thus.Dust and dirt are isolated and are deposited in the dirt-collecting bowl 124 by the first cyclone type separative element and the second cyclone type separative element, can dirt-collecting bowl 124 be emptied by opening bowl-shape door 130.
Return Fig. 7, wherein show three in altogether four the motor cooling entrances 31 in the annular upper wall 121 of waste rexeptacle 120.Among Fig. 7, another motor cooling entrance is blocked by end cap 30.
Return Fig. 8, wherein show four swirler seals 58.Each swirler seal forms the ring that rib is arranged around three continuous swirlers 54.The little gap 59 that between four swirler seals, has four equi-angularly spaces.58 pairs of swirler seals except 59 positions, gap swirler assembly 50 and the connecting portion between the inwall 60 seal.
With reference to figure 9F, the flow through path of motor 16 and fan 18 of the motor cooling air (single head arrow) that has wherein shown cleaning.Four motor cooling entrances are communicated with the first motor cooling passage 61a, and the first motor cools off passage 61a between the cylindrical wall 66 of the shell 42 of preposition fan filter 40 and inwall 60.
With reference to figure 9G, wherein show the longitudinal section of the swirler 54 in the regional area X of Fig. 9 F.Here, swirler seal 58 stops the first motor cooling passage 61a to cool off being communicated with between the passage 61b with the second motor, and the second motor cooling passage 61b is between the cylindrical cup 64 of electrical motor fan housing 27 and inwall 60.
With reference to figure 9H, wherein show in the regional area X of Fig. 9 F the longitudinal section between two swirlers 54 and two the swirler seals 58.Here, the gap between the swirler seal 58 59 allows the first motor cooling passage 61a to cool off being communicated with between the passage 61b with the second motor.
Get back to Fig. 9 F, in use, under the effect of fan, flow through four motor cooling entrances 31 and flow along the first motor cooling passage 61a of the motor cooling air of cleaning, pass gap 59 and mobile along the second motor cooling passage 61b, motor cooling air enters electrical motor fan housing 27 from the second motor cooling passage 61b via bottom airslide 32.Motor comprises the motor passage 17a of the bottom that is positioned at the motor tank and is positioned at the motor passage 17b at the top of motor tank, in order to make the inner ventilation of motor.Paddle wheel 26 makes the motor cooling air circulation of motor bottom periphery and strengthens.Under the effect of fan, motor cooling air stream enters bottom electrical motivation passage 17a, passes the inside of motor and passes top motor passage 17b.Motor is by the cooling of motor cooling air-flow.Motor cooling air flow path imports the cleaning gas tream path from the Cyclonic separating apparatus 8 around the axial entrance 22 of fan 18.Motor cooling air-flow is discharged and is flowed out from the eyelet 36 of end cap 30 from the tangential outlet 24 of fan.
Motor cooling entrance 31 is arranged around central axis 21 equi-angularly space ground.Gap 59 between motor cooling entrance and the swirler separation seal part 58 axially aligns, and aims at the bottom airslide 32 in the electrical motor fan housing 27.This axially aligns any resistance that helps the motor cooling air-flow along motor cooling passage 61a, 61b runs into and minimizes.Bottom electrical motivation passage 17a also aims at the bottom airslide 32 of electrical motor fan housing 27, and this helps that motor is cooled off any resistance that air-flow runs into and minimizes.
The motor cooling air flow path of cleaning separates with the air flow path of the axial entrance that passes Cyclonic separating apparatus 8 arrival fans 18.This has specific benefit for vacuum cleaning.Typically, when fan ran into the resistance of volume air-flow, the speed of motor increased, and the pressure that strides across fan correspondingly increases.The example that this phenomenon may occur is in the time of other Surface Contact of the operation of vacuum cleaner and dirty air inlet and carpet, hard floor, curtain or restriction air-flow.No matter for which kind of reason, become and stop up or be obstructed if pass the air flow path of Cyclonic separating apparatus 8, then motor cooling air flow path not necessarily can be blocked or be obstructed.But the pressure that strides across fan 18 of increase passes increase the suction of motor cooling air flow path.This has advantages of the highest when motor operation intensity and needs most the cooling that strengthens motor when cooling off.
With reference to Figure 44, wherein show the form of the test data relevant with the temperature of motor 16.When Motor Drive fan 18 when producing air-flow, two the installation of TCs are on the motor tank.Cyclonic separating apparatus 8 experience comprise three independent tests of different operating condition: (a) free stream (dirty air inlet 12 is opened fully); (b) maximum power output of Cyclonic separating apparatus (pneumatic power); And the suction (dirty air inlet 12 closures) that (c) seals.It will be appreciated by those skilled in the art that: pneumatic power is the measured value that multiply by the pumping power that calculates based on humidity and atmospheric correction coefficient by multiply by suction (power/area) with volume flow rate (volume/time).Measures ambient temperature and itself and motor temperature compared after ten minutes the running times.In the situation that opening, four motor cooling entrances 31 carry out three tests, then in the situation that the closed retest of one of four motor cooling entrances 31.The importance that test data clearly shows the advantage of motor cooling air flow path and has four motor cooling entrances 31.
With reference to Figure 10 and Figure 11, wherein show the second embodiment of hand vacuum cleaner 202, this hand vacuum cleaner 202 comprises: main body 204, it has main shaft 205; Handle 206; Cyclonic separating apparatus 208, it laterally is installed on the main body with respect to main shaft; And foul atmosphere passage 210, the one end has dirty air inlet 212.Vacuum cleaner comprises: motor 216, and it engages with fan, and this fan is for generation of the air-flow of the vacuum cleaner of flowing through; And rechargeable battery 217, it provides electric energy to motor when being connected with electric electromechanics by ON/OFF switch 214.
Referring to figs 12 to Figure 16, wherein show the exit passageway 260 that comprises motor 216, rechargeable battery 217, fan 218, preposition fan filter 240, Cyclonic separating apparatus and the structure of Cyclonic separating apparatus 208.
Motor has driving shaft 220, and driving shaft 220 has longitudinal center's axis 221.Fan is centrifugal fan 218, and fan has the axial entrance 222 of motor dorsad and tangentially exports 224.The diameter of fan is 68mm.Fan is installed on the driving shaft that is positioned at the motor top.As being shown clearly in Figure 11 and Figure 14, battery 217 is arranged to around the longitudinal axis of the circular array of motor 216 and battery parallel with central axis 221.In use, the Motor Drive fan produces the air-flow of the Cyclonic separating apparatus of flowing through, and will be explained in more detail this hereinafter.
Main body 204 comprises central housing 226, motor field frame 228, framework 230 and end cap 232.Fan 218 is contained in the central housing 226.Central authorities' housing is connected with handle 206.Motor 216 and battery 217 are contained in the motor field frame 228.Motor field frame roughly extends, with the profile of adaptive battery.End cap 232 is connected with the end opposite that fan one end is housed of motor field frame.End cap has the eyelet 236 that is arranged to circular array.
Framework 230 couples together central housing 226 with Cyclonic separating apparatus 208.One end of framework supports preposition fan filter 240, and preposition fan filter 240 is arranged on the place ahead of the axial entrance 222 of fan 218.The other end of framework supports Cyclonic separating apparatus.
Exit passageway 260 is limited by the conduit wall 262 of substantially elliptical, and conduit wall 262 is arranged on the framework 230, in order to form this exit passageway between conduit wall and framework.Exit passageway 260 is provided with air flow path, and air flow path is between Cyclonic separating apparatus 208 and preposition fan filter 240.Conduit wall can disassemble from framework.Conduit wall is transparent, so that preposition fan filter is carried out visual examination.If preposition fan filter need to clean or change, conduit wall can be removed from framework.
Cyclonic separating apparatus 208 comprises swirler assembly 250, swirler seal 270, cyclone separator component 280, columnar midfeather 290 with holes, circular dividing plate 300, conical hopper 310, has waste rexeptacle 320 and the circular dirt-collecting bowl 330 of the transparent general cylindrical shape of longitudinal center's axis 321, and all these parts center on the central axis 321 of waste rexeptacle 320 and arrange.
Swirler assembly 250 comprises the planar substrates 252 of circular, and this planar substrates 252 has the cylindrical shape swirler 254 of six hollows.Each swirler has the central axis 257 of center through hole 256 and this swirler self.Swirler is arranged to around the circular array of the central axis 321 of waste rexeptacle 320.Each swirler is parallel with central axis 321.Swirler is one side-prominent from matrix.The sub-fraction of each swirler is also outstanding from the opposition side of matrix.Swirler can have the vertical internal rib (not shown) along through hole, in order to help to be suppressed at the high-frequency sound that air stream is caused by helmholtz resonance when swirler through hole 256.
Cyclone separator component 280 comprises the ring 282 of general cylindrical shape and six cyclone separators 284 that are arranged to circular array that surrounded by this ring 282.Cyclone separator is arranged around the central axis 321 equi-angularly space ground of waste rexeptacle 320.Each cyclone separator has: the cylindrical shape top of hollow divides 285; And the frustoconical base of hollow divides 286, and it divides 285 to hang down and end at the discharge nozzle 287 that is positioned at the cyclone separator bottom from the cylindrical shape top.
Swirler assembly 250 is arranged on the ring 282 of cyclone separator component 280.Swirler 254 projects into the cylindrical shape top of corresponding cyclone separator 284 and divides in 285.Pass unique its swirler 254 of passage process at the top of cyclone separator 284, swirler 254 is as the air stream outlet that leads to exit passageway 260.Each swirler cyclone separator corresponding with it is concentric.The plane of each nozzle 287 tilts with respect to central axis 257.This helps to prevent that dust and dirt particle from entering nozzle again after nozzle is discharged.
The cylindrical shape top of each cyclone separator 284 divides 285 to have air intake 288, and air intake 288 is set to tangentially pass a side of cyclone separator and near swirler 254.Six air intakes and the below that is positioned at ring 282 and be communicated with around the dispensed chambers 370 of cyclone separator 284 will be explained in more detail this hereinafter.
Midfeather 290 is arranged on the cyclone separator component 280.Roughly the same and the midfeather 290 butt cylindrical shape rings 282 of the external diameter of the external diameter of midfeather 290 and cylindrical shape ring 282.
Dividing plate 300 be arranged on the midfeather 290 and the diameter of the diameter of dividing plate 300 and midfeather 290 roughly the same.Dividing plate 300 is equipped with 302, six holes, six holes 302 that are arranged to circular array and arranges around central axis 321 equi-angularly space ground.Corresponding partition board hole 302 is passed in discharge nozzle 287 projections of cyclone separator 284.Dividing plate 300 has from central axis 321 towards collecting the radially outward circumferential lip 304 of inclination of bowl 330.Lip 304 slightly protrudes from midfeather 290.
Conical hopper 310 comprises the circumferential skirt portion 312 of hollow, the truncated cone shape tapering 314 of hanging down from the skirt section and the cylindrical nose portion 316 of the hollow that hangs down from the tapering.The skirt section be arranged on the dividing plate 300 and the external diameter of the external diameter in skirt section and dividing plate 300 roughly the same.The tapering from dividing plate towards collecting radially inwardly convergent of bowl 330.The perforated portion 318 in skirt section is axially outstanding backward towards collecting bowl 330 from the tapering.
The waste rexeptacle 320 of general cylindrical shape comprises the cylindrical outer wall 322 of hollow, and this outer wall 322 has the circular shoulder 324 that radially inwardly extends from the top of outer wall 322.Waste rexeptacle has the dirty air inlet 326 that is set to tangentially pass outer wall 322.Dirty air inlet is communicated with foul atmosphere passage 210.Outer wall 322 rotatably is connected with framework 230, so that Cyclonic separating apparatus 208 can rotate with respect to main body 204 around its central axis 321.Foul atmosphere passage 210 can be with Cyclonic separating apparatus 208 rotations, and as shown in figure 11, Figure 11 shows the foul atmosphere passage that is in the folding position.
The planar substrates 252 of swirler assembly 250 is embedded in the hole in the circular shoulder 324 of waste rexeptacle 320.The circular shoulder 324 of ring 282 butts of cyclone separator component 280.Cyclone separator 284 is positioned at waste rexeptacle 320 inside.
Dirt-collecting bowl 330 removably is connected with the outer peripheral edges 332 of waste rexeptacle 320.Dirt-collecting bowl butt nose 316, thus waste rexeptacle and dirt-collecting bowl are divided into two independent chambers: be positioned at the circular chamber 334 of conical hopper 310 inside and the chamber 362 of the general toroidal that is positioned at the conical hopper outside.Dirt-collecting bowl 330 can by fasten, engaging, interlocking claw, interference fit or be connected with the outer peripheral edges of waste rexeptacle by hinge.Be provided with the elastic sealing element 336 of being made by polyethylene, the similar elastomeric material of rubber person around dirt-collecting bowl 330, to guarantee being tightly connected of dirt-collecting bowl 330 and waste rexeptacle.
Waste rexeptacle 320 has towards the annular lip 328 of collecting bowl 330 and radially inwardly tilting towards central axis 321.Lip 328 slightly protrudes from outer wall.Lip 328 approaches bowl 330.
The nose 316 of conical hopper 310 and the relation that has complementary fit from the interior side-prominent annulus 340 of dirt-collecting bowl 330.These parts of having guaranteed Cyclonic separating apparatus 208 are concentric with central axis 321 maintenances of waste rexeptacle 320.
In use, foul atmosphere flows into dirty air inlet 212 under the effect of fan 218, and pass foul atmosphere passage 210 and flow into Cyclonic separating apparatus 208, in Cyclonic separating apparatus 208, the dust of carrying secretly in the air-flow and dirt and flow separation.Dust and dirt are collected in the Cyclonic separating apparatus.Air flows out from Cyclonic separating apparatus 208, through the through hole 256 of swirler, flows along exit passageway 260, pass preposition fan filter 240, pass fan 218, via motor field frame 228 flow through motor 216 and battery unit 217, and the eyelet from end cap 232 236 flows out.
With reference to figure 17A, Cyclonic separating apparatus 208 is divided into the first cyclone type separative element 360, the second cyclone type separative element 350 and dispensed chambers 370.The first cyclone type separative element is arranged in the air flow path of dispensed chambers upstream.Dispensed chambers is arranged in the air flow path of the second cyclone type separative element upstream.
The first cyclone type separative element 360 comprises cylindrical shape waste rexeptacle 310.The second cyclone type separative element 350 comprises six cyclone separators 284 that are arranged to circular array.Waste rexeptacle is concentric with the central axis 321 of waste rexeptacle.Dispensed chambers 370 is limited by ring 282, cyclone separator component 280, midfeather 290 and dividing plate 300.The air-flow that the second cyclone type separative element 350 receives from the first cyclone type separative element 360 via dispensed chambers 370.
The diameter of the outer wall 322 of waste rexeptacle 320 is about 120mm.The diameter of cyclone separator 284 is less than the diameter of annular compartment 362.Spiral helicine air-flow is subject in cyclone separator than centrifugal force larger in waste rexeptacle.Therefore, the cyclone separator of the second cyclone type separative element 350 has the separative efficiency higher than the waste rexeptacle of the first cyclone type separative element 360 when combination.
With reference to figure 17B to Figure 17 F the air flow path that passes Cyclonic separating apparatus 208 is described in more detail.
With reference to figure 17B, foul atmosphere (three arrows) flows into waste rexeptacle 320 from foul atmosphere passage 210 via dirty air inlet 326.The cutting orientation structure of dirty air inlet 326 is so that foul atmosphere is mobile along the helical-like path around waste rexeptacle.This has produced outer eddy flow in waste rexeptacle.Centrifugal force make relative to large dust and dirt (D) particle outwards move with the bump waste rexeptacle 320 the side and make relative large dust and dirt particle and flow separation.The dust that separates and dirt move and are deposited in the dirt-collecting bowl 330 towards 330 convolutions of dirt-collecting bowl.
With reference to figure 17C, adverse current occurs in the cleaned air (double-headed arrow) self of part, flows around the inside spin first class footpath of conical hopper 310 and towards columnar midfeather 290 to follow closely.The flow through perforated portion 318 in skirt section 312 of conical hopper of the cleaned air of part substantially unblockedly.The circumferential lip 304 of dividing plate 300 and the lip 328 of waste rexeptacle 320 are converted into width restriction Y in the first cyclone type separative element 360.This width restriction has reduced at least 15% with the radial width between waste rexeptacle and the midfeather.The restriction of this width is towards bowl 330 and convergent, is more prone to so that air and the dirt carried secretly thereof can move than direction towards the opposite towards the movement of bowl-shape door.Therefore, circumferential lip 304,328 captured the dirt that separates in the bowl 324 before the dirt that the separates air-flow cleaned by part carried secretly again with the perforated portion 318 in the skirt section 312 of conical hopper.The cleaned air stream of part in midfeather eyelet and flow into dispensed chambers 370, this midfeather filters the large dirt particle of any remnants.
Can find out in Figure 16, the air intake 288 of six cyclone separators is molded in the ring 282 of cyclone separator component 280.Dispensed chambers 370 is communicated with the air intake 288 of six cyclone separators 284.With reference to figure 17D, in dispensed chambers, the cleaned air-flow (double-headed arrow) of part is divided equally himself between six air intakes 288, and flows in six cyclone separators 284 of the second cyclone type separative element 350 from these six air intakes 288.The cleaned air-flow of air intake 288 leaders centers on swirler 254 along helical-like path and flows.This has produced outer eddy flow in each cyclone separator 284 inside.Centrifugal force make dust and dirt outwards mobile with the bump cyclone separator the side and make dust and dirt and flow separation.The dust that separates and dirt are mobile towards discharge nozzle 287 convolutions.The internal diameter of the frustoconical part 286 of cyclone separator is along with air-flow reduces near nozzle.This accelerates spiral air flow, has increased thus centrifugal force and isolate less dust and dirt particle from air-flow.Dust and dirt particle leave nozzle with in the part that is limited by conical hopper 310 that is deposited on bowl 330.
With reference to figure 17E, adverse current self occurs in clean air (single head arrow), directly passes the middle part of cyclone separator 284 to follow narrow inside spin first class.Under the effect of fan, clean air flows out from the interior bone 256 of swirler 254.
Return Figure 17 F, clean air flows into exit passageway 260 and flow to preposition fan filter 240 from swirler 254.Preposition fan filter 240 is removed through remaining any tiny dust and dirt particle in the air-flow after the Cyclonic separating apparatus 208, before the arrival fan 218.Clean air flow enters the axial entrance 222 of fan 218 and discharges from the tangential outlet 224 of fan 218.The Route guiding cleaning gas tream of central authorities in the housing 226 be from fan flow through motor 216 and battery 217, so as before air to flow out from the eyelet 236 of end cap 232 cool motors and battery.
Dust and dirt are isolated and are deposited in the dirt-collecting bowl 330 by the first cyclone type separative element and the second cyclone type separative element, dirt-collecting bowl 330 can be opened to empty.
With reference to Figure 18, wherein show the scope that is positioned at exit passageway 260, framework 230, waste rexeptacle 320 and dirt-collecting bowl 330 with the diagram figure of different parts (swirler assembly 250, swirler seal 270, cyclone separator component 280, midfeather 290, dividing plate 300, conical hopper 310) of Cyclonic separating apparatus 208.
Swirler seal 270 seals connecting portion between swirler assembly 250 and the waste rexeptacle 320 in airtight mode.Exit passageway seal 266 is with airtight mode seal frame 230 and the connecting portion between the exit passageway wall 262.Swirler seal 270 and exit passageway seal 266 are made by polyethylene, rubber or similar elastomeric material.
Some parts of Cyclonic separating apparatus 208 typically removably are connected by fastening, engaging, interference fit or interlocking claw.This allow in the situation that not tool using with the Cyclonic separating apparatus dismounting or re-assembly, so that cleaning or change the separate part of Cyclonic separating apparatus, as described referring to figures 19 through Figure 22.
With reference to Figure 19, wherein show the method for the first structure of dismounting Cyclonic separating apparatus 208, exit passageway wall 262 can be disassembled from framework 230 thus.Waste rexeptacle 320 can disassemble from framework.The swirler assembly can disassemble from framework separately or with waste rexeptacle.Cyclone separator component 280, midfeather 290, dividing plate 300 and conical hopper 310 can disassemble from the swirler assembly equally integratedly.
Dirt-collecting bowl 330 has enough large diameter, thereby when the dirt-collecting bowl is opened, cyclone separator component 280, midfeather 290, dividing plate 300 and conical hopper 310 can be removed from waste rexeptacle 320.
With reference to Figure 20, wherein show the method for the optional structure of dismounting Cyclonic separating apparatus 208, exit passageway wall 262 can be disassembled from framework 230 thus.Waste rexeptacle 320 can disassemble from framework.Swirler assembly 250, cyclone separator component 280, midfeather 290, dividing plate 300 and conical hopper 310 can disassemble from framework integratedly, can in the lump waste rexeptacle be disassembled or waste rexeptacle not disassembled simultaneously.Dirt-collecting bowl 330 can be opened to empty.
With reference to Figure 21, wherein show the method for the second optional structure of dismounting Cyclonic separating apparatus 208, exit passageway wall 262 can be disassembled from framework 230 thus.Waste rexeptacle 320, swirler assembly 250, cyclone separator component 280, midfeather 290, dividing plate 300 and conical hopper 310 can disassemble from framework integratedly.Dirt-collecting bowl 330 can be opened to empty.
With reference to Figure 22, wherein show the method for the 3rd optional structure of dismounting Cyclonic separating apparatus 208, thus can be with exit passageway 260(namely, conduit wall 262 and framework 230) disassemble from framework.Waste rexeptacle 320 remains on the framework.When dirt bowl 330 was opened, swirler assembly 250, cyclone separator component 280, midfeather 290, dividing plate 300 and conical hopper 310 can remove from framework integratedly.
With reference to Figure 23, wherein show the 3rd embodiment of hand vacuum cleaner 402, this hand vacuum cleaner 402 comprises the main body 404 with handle 406, the foul atmosphere passage 410 that is installed in the Cyclonic separating apparatus 408 on this main body and at one end has dirty air inlet 412.This vacuum cleaner comprises motor and rechargeable battery, and this motor engages with fan for generation of the air-flow of the vacuum cleaner of flowing through, and this rechargeable battery provides electric energy to motor when being connected with electric electromechanics by ON/OFF switch 14.
With reference to Figure 24 to Figure 27, wherein show the more details of exit passageway 460 and the Cyclonic separating apparatus 408 of motor 416, rechargeable battery 417, fan 418, preposition fan filter 440, Cyclonic separating apparatus.
Motor has driving shaft 420.Fan 418 is installed on the driving shaft that is positioned at the motor top.The diameter of fan is about 68mm.Battery 417 is arranged around motor 416.In use, the Motor Drive fan passes the air-flow of Cyclonic separating apparatus with generation, will be explained in more detail this hereinafter.
Main body 404 comprises central housing 426 and framework 430.Motor 416, fan 418 and battery 417 are contained in the central housing 426.This central authorities' housing is connected with handle 406.Central authorities' housing has the eyelet 436 that is arranged to array near the motor bottom.Eyelet 436 is used for discharging air-flow from central housing.
Framework 430 is connected to central housing 426 on the Cyclonic separating apparatus 408.One end support arrangement of framework is at the preposition fan filter 440 in entrance the place ahead of fan.The other end of framework supports Cyclonic separating apparatus.This Cyclonic separating apparatus is rotatably connected on the framework.
Exit passageway 460 comprises that the conduit wall 462 that is arranged on the framework is to form the dark passage of about 10mm between conduit wall and framework.Exit passageway 460 provides the air flow path between Cyclonic separating apparatus 408 and the preposition fan filter 440.This conduit wall can disassemble from framework.This conduit wall is transparent in to allow that preposition fan filter is carried out visual examination.Be provided with the elastic sealing element of being made by polyethylene, rubber or similar elastomeric material around conduit wall, to guarantee being tightly connected of conduit wall and framework.If preposition fan filter need to clean or change then conduit wall be removed from framework.
The elongated substantially elliptical waste rexeptacle 520 that Cyclonic separating apparatus 408 comprises swirler assembly 450, cyclone separator component 480 and has transparent window 530.
Swirler assembly 450 has hollow circle tube swirler 452, and this swirler 452 comprises conical flow guiding fin 454.This swirler comprises the central through hole 456 with longitudinal center's axis 457.This conical flow guiding fin is radially outstanding from the outer surface of swirler.In the present embodiment, this conical flow guiding fin is leg-of-mutton, although it can have other tapered profiles.The triangular-shaped profile of Air deflector 454 is right angled triangles.
Cyclone separator component 480 comprises cyclone separator 484 and dirty air inlet 488.This cyclone separator has hollow circle tube main body 485 and the frustoconical base main body 486 that comprises dirty air inlet, and this frustoconical base main body 486 is from this cylindrical-shaped main body extension and end at the discharge nozzle 487 that is positioned at narrow end.This air intake is arranged to tangentially pass a side of cylindrical-shaped main body.Swirler 452 is arranged in the inside of cyclone separator 484.This swirler is concentric with this cyclone separator.Air deflector 454 is arranged with respect to the path lateral from the air-flow of air intake.The minor face that radially extends of this Air deflector is against framework 430.The summit 4541 of this Air deflector is near air intake.The end of the close discharge nozzle 487 of the hypotenuse of this Air deflector from the summit to the swirler is inside convergent radially.The little gap Z that between the cylindrical-shaped main body 485 of summit and cyclone separator 484, has about 5mm.
Waste rexeptacle 520 at one end is connected and is connected with the discharge nozzle 487 of cyclone separator 484 at the other end with central housing 426.This waste rexeptacle comprises perisporium 522 and the diapire 524 of the periphery of following elongated substantially elliptical waste rexeptacle, and cylinder groove 526 extend in the scope of this waste rexeptacle from this diapire.Cyclone separator 484 passes diapire 524 outstanding positions at discharge nozzle 487 and is communicated with waste rexeptacle.In the bottom bearing of the opposition side motor 416 of waste rexeptacle in cylinder groove 526 inside, thereby the overall width of vacuum cleaner is reduced approximately 20mm~25mm.
Cyclone separator 484 has the crooked fin 490 that axially stretches into waste rexeptacle 520 from discharge nozzle 487.This crooked fin is being approximately half circular arc of nozzle circumference surely in the face of a lateral confinement of cylinder groove 526.The end of this crooked fin is towards the nozzle convergent.Waste rexeptacle has the smooth fin 492 of giving prominence to from diapire 524.This smooth fin tangentially extends to the approximate mid-section of waste rexeptacle from the top of cylinder groove 526.During normal use, this smooth fin is basically parallel with the adjacent original flat part 522a that is positioned at the uppermost perisporium 522 of waste rexeptacle.
Window 530 is detachably connected on the perisporium 522 of container 520.Window 530 can by fasten, interlocking claw, hinge 528 or be connected on the waste rexeptacle by the outer wall interference fit with waste rexeptacle.In the example that illustrates, window loads breech lock 529 by spring and remains securely closed condition.Be provided with the elastic sealing element (not shown) of being made by polyethylene, rubber or similar elastomeric material around window, be connected with waste rexeptacle 520 in airtight mode to guarantee window.Can empty by Cyclonic separating apparatus and separate and be deposited on dust and dirt in the waste rexeptacle 520 by opening window 530.This window is transparent become full and can carry out visual examination to waste rexeptacle 520 need to empty the time with convenient waste rexeptacle 520.
In use, foul atmosphere flows into dirty air inlet 412, the dirty air inlet of flowing through passage 410 and flows into Cyclonic separating apparatus 408 under the effect of fan 418, in Cyclonic separating apparatus 408, the dust of carrying secretly in the air-flow and dirt and flow separation.Dust and dirt are collected in this Cyclonic separating apparatus.Air via the through hole 456 of swirler from Cyclonic separating apparatus 408 flow out, along exit passageway 460 flow, pass preposition fan filter 440, via flow through fan 418 and flow through motor 416 and battery 417 of central housing 426, then the eyelet from central housing 436 flows out.
With reference to Figure 24,27 and Figure 28, the air-flow that passes Cyclonic separating apparatus 408 has been described in more detail.Enter the cylindrical-shaped main body 485 of cyclone separator 484 via air intake 488 from the foul atmosphere (three arrows) of foul atmosphere passage 410.The cutting orientation structure of air intake 488 and from the existence of the outstanding triangle Air deflector 454 of swirler 452 and with the foul atmosphere guiding for flowing along helical-like path around cyclone separator, and then foul atmosphere is guided towards discharge nozzle towards truncated cone shape main body 486.This has produced outer eddy flow in cyclone separator.Centrifugal force makes larger dust and dirt particle outwards mobile with the side of bump cyclone separator and with these dusts and dirt particle and flow separation.The dust that separates and dirt move and enter in the waste rexeptacle 520 towards discharge nozzle 487 convolutions.
As shown in figure 24, the cleaned air-flow (double-headed arrow) of part leaves cyclone separator 484 by the near-end sweep 522d guiding of crooked fin 490 and perisporium 522 and along counterclockwise upward direction.This helps to keep air velocity.Smooth fin 492 and groove 526 help to be similar to the air-flow guiding that part is cleaned of the form of two belt pulley transmissions for to follow around the elongated loop flow of the perisporium 522 of waste rexeptacle 520, in the form of this pair belt pulley transmission, discharge nozzle 487 simulations are positioned at the belt wheel of an end, and groove 526 simulations are positioned at the belt wheel of end opposite.For example, during normal use, the original flat part 522b that perisporium 522 is pressed close in the elongated loop of this of air-flow begins and divides in the distal bent of perisporium 522 that 522c is inboard to be redirected with around groove 526 revolutions from discharge nozzle, and is adjacent to be positioned at the nethermost perisporium of waste rexeptacle farther and holds smooth part 522d level with both hands and advance towards discharge nozzle.The extension axis in this elongated loop roughly passes the center of discharge nozzle and groove.This smooth fin and groove prevent that a large amount of dusts and dirt particle (D) are fartherly dropping from the air-flow of circulation before holding level with both hands on the smooth part 522d of being deposited on the perisporium that is arranged in the waste rexeptacle bottom.Perisporium 522 has the almost diamond cross section parallel with diapire 524.The original flat part 522a of perisporium and fartherly hold the inside convergent of smooth part 522c level with both hands and divide 522b away from the distal bent of perisporium.This has promoted groove ends deposition dust and dirt around waste rexeptacle, and wherein the groove ends of waste rexeptacle has larger space than the opposite discharge nozzle end of waste rexeptacle.In addition, crooked fin 490 enters the barrier of discharge nozzle as the laminar-flow type air-flow.This air-flow is forced to depart from this crooked fin.Destruction to this laminar-flow type air-flow promotes any residual dust of carrying secretly and dirt (D) thing to be deposited in the waste rexeptacle.Therefore, the combination of shapes of perisporium 522, smooth fin 492, groove 526 and crooked fin 490 gets up to help to isolate any residual dust and dirt from the air flow path that flows to preposition fan filter 440.This has improved the duration performance of vacuum cleaner 502.
After departing from through crooked fin 490, cleaning gas tream (single arrow) self adverse current occurs and under the effect of fan in narrow inside spin shape path flow to flow into the through hole 456 of swirler, air-flow leaves Cyclonic separating apparatus 408 and enters access road 460 from this through hole 456.
To Figure 38, wherein show the different battery-operated type vacuum cleaners of the structure of motor 16, fan 18 and Cyclonic separating apparatus 8 with first embodiment with reference to Figure 29.In all examples, this structure fabric is equipped with the central axis 21 of driving shaft 20, and this central axis is oriented to the main shaft of the main body of crosscut vacuum cleaner.Particularly, show the hand-holdable formula vacuum cleaner 602 with the foul atmosphere passage 610 that can pivot; The hand-holdable formula vacuum cleaner 702 that is connected to imitate small cylinder formula cleaner by flexible hose 710 with cleaning nozzle 712; And have elongate body 806, support wheel 807 and cleaner head 812 with the vacuum cleaner 802 of imitation upright vacuum cleaners (usually being also referred to as " light cleaner ").
To Figure 32, hand-holdable formula vacuum cleaner 602 comprises main body 604 and the handle 606 with main shaft 605 with reference to Figure 29.The motor 16 of the first embodiment, fan 18 and Cyclonic separating apparatus 8 are rotatably connected on the main body 604 at annular upper wall 121 places of waste rexeptacle 120.The central axis 21 of this Cyclonic separating apparatus is oriented to main shaft with main body meet at right angles (that is, crosscut).Vacuum cleaner 602 comprises the battery pack 900 with rechargeable battery 917, to provide electric energy to motor 16 when being electrically connected with motor 16 by ON/OFF switch 14.Foul atmosphere passage 610 is connected with air intake 126.
With particular reference to Figure 31, battery pack 900 has the shaped form cross section profile, and this shaped form cross section profile has and is configured as the shaped form inwall 902 that is engaged in around the cylindrical shape waste rexeptacle 120.Battery pack 900 has a pair of electric contact 904 that is positioned on the shaped form outer wall 906, in order to can charge to these batteries in position.This battery pack is detachably connected on the waste rexeptacle 120.This battery pack can disassemble in order to can change as required these batteries or externally these batteries are charged from waste rexeptacle 120.These batteries have the general cylindrical shape shape.The longitudinal axis of these batteries is arranged to parallel with the central axis 21 of motor 16.
Foul atmosphere passage 610, battery pack 900 and Cyclonic separating apparatus 8 can turn over 210 ° of right circular arcs from the folding position around central axis 21.This allows vacuum cleaner 602 to be positioned at different directions, and the user can remain vacuum cleaner same orientation.By the main shaft 605 with main body 604 be oriented to be suitable for the user and with the position adjustments of foul atmosphere mouth 612 for aiming at surface to be cleaned, rather than main shaft is oriented to is suitable for surface to be cleaned most and requires the user vacuum cleaner to be remained the orientation that satisfies this demand, vacuum cleaner can be used for approach narrower space and can more cosily control vacuum cleaner.
Figure 29 and Figure 30 show the vacuum cleaner 602 that is in the folding position, and in this folding position, the foul atmosphere passage is folded to handle 606 belows with zero degree, so that compact storage.Battery pack 900 rotates to the opposition side on the diameter of waste rexeptacle 120.In the erection position shown in Figure 29, this vacuum cleaner can be supported on the battery charger 916.Because the foul atmosphere passage is folded in the handle below, so this allows vacuum cleaner uprightly and not to need too high height with little surface area.By such layout, be easy to grasp vacuum cleaner.The center of gravity of this vacuum cleaner is owing to battery pack reduces, thereby so that the erection position is more stable.In addition, battery 917 is electrically connected with battery charger 916 by electric contact 904, in order to charge in the erection position.
Figure 32 shows the vacuum cleaner 602 that is in extended position.Foul atmosphere passage 610 is from folding position Rotate 180 ° and be ready to come into operation.Foul atmosphere passage 610 is the twice of its length by the telescopically elongation.Battery pack 900 occupies the gap 616 between handle 606 and the waste rexeptacle 120.Battery pack heavier and its in gap 616 position so that the gravity motion of vacuum cleaner near handle.This has improved the ergonomic of vacuum cleaner.
With reference to Figure 33 and Figure 34, hand-holdable formula vacuum cleaner 702 comprises the main body 704 with jug 706.Motor 16, fan 18 and Cyclonic separating apparatus 8 are connected on the main body 704 at annular upper wall 121 places of waste rexeptacle 120.Vacuum cleaner 702 comprises the battery pack 910 with rechargeable battery.These batteries provide electric energy to motor 16 when being electrically connected with motor 16 by the ON/OFF switch.Air intake 126 is connected with an end of flexible hose 710.Cleaning nozzle 712 is connected with the other end of flexible hose.
Battery pack 910 has and is configured as the shaped form inwall 902 that is supported on the cylindrical shape waste rexeptacle 120.This battery pack is detachably connected on the waste rexeptacle 120.Can be in position to these battery chargings.This battery pack can disassemble in order to can change as required these batteries or externally to the charging of these batteries from waste rexeptacle.This battery pack has a pair of leg 912, and this is arranged to support this vacuum cleaner 702 in stable mode when vacuum cleaner 702 is placed on the flat surfaces to leg.These batteries have the general cylindrical shape shape.The longitudinal axis of these batteries is arranged to parallel with the central axis 21 of motor 16.
Figure 32 and Figure 34 show the compactly designed of vacuum cleaner 702.Flexible hose 710 is wound on the waste rexeptacle 120 via the notch 914 in the battery pack leg 912 and is positioned at battery pack 910 belows.Cleaning nozzle 712 is by handle 706 supportings.This handle is with molded the forming of plastic material with natural elasticity.This cleaning nozzle is gripped by this handle.This cleaning nozzle can easily disassemble to be used for vacuum cleaning from handle.
With reference to Figure 35 and Figure 37, vacuum cleaner 802 comprises elongate body 804.This elongate body is telescopic.This elongate body at one end has handle 806 and has support 805 at the other end.The motor 16 of the first embodiment, fan 18 and Cyclonic separating apparatus 8 are rotatably connected on the support 805 at annular upper wall 121 places of waste rexeptacle 120.This support centers on a lateral bending archwise of waste rexeptacle so that this of waste rexeptacle side can laterally be connected on the elongate body.Support wheel 807 surrounds waste rexeptacle 120.This support wheel is supported in order to rotate around waste rexeptacle by bearing 809.Air intake 126 is connected with an end of foul atmosphere passage 810.Cleaner head 812 is connected with the other end of foul atmosphere passage 810.Cleaner head 812 can pivot with respect to waste rexeptacle around the longitudinal axis 8100 of foul atmosphere passage.This foul atmosphere passage is tangentially arranged with respect to waste rexeptacle.
Vacuum cleaner comprises that the battery pack 900 with rechargeable battery 917 is to provide electric energy to motor 16 when being connected with electric electromechanics by the ON/OFF switch.With reference to Figure 37, battery pack 900 has the shaped form inwall 902 that is configured as a part of surrounding support wheel 807 and cylindrical shape waste rexeptacle 120.This battery pack is detachably connected on the support 805.Can be in position to battery 917 chargings.This battery pack can disassemble in order to can change as required these batteries or charge from the outside to these batteries from support.These batteries have the general cylindrical shape shape.The longitudinal axis of these batteries is arranged to parallel with the central axis 21 of motor 16.
Return Figure 35, wherein show the vacuum cleaner 802 that is ready to come into operation, wherein support wheel 807 and cleaning head 812 are positioned on the floor and elongate body 804 is in complete elongation state.Support wheel 807 is arranged to around the mid point of the axial length of waste rexeptacle.The axial length of the diameter of support wheel 807 and waste rexeptacle 120 all swings approximately 45 ° and can easily handle vacuum cleaner 802 so that elongate body is can the left and right sides two-way about equally.
Return Figure 37, wherein show in elongate body 804 and be retracted to vacuum cleaner in about 1/4th the situation of extended length of this elongate body fully.The total length of vacuum cleaner is at least the twice of the total length of vacuum cleaner when this elongate body is retracted when this elongate body elongation.When elongate body was retracted, vacuum cleaner 802 was ready to leave in the kitchen cabinet.This elongate body can be locked in its retracted position and extended position.It will be appreciated by those skilled in the art that: any suitable locking system will be enough to satisfy the demand, for example, can be corresponding to any centre position between retracted position, extended position and retracted position and the extended position load claw with spring along the hole interlocking of elongate body.
With reference to Figure 38, wherein the mode with perspective shows battery pack 900, and shows especially the shaped form inwall 902 of waste rexeptacle 120 outsides that will surround or be connected to Cyclonic separating apparatus 8.
With reference to Figure 39 and Figure 40, wherein show the battery pack 900 along cross section XXXVIII-XXXVIII.Commercially available rechargeable battery can have cylindrical shape.Thereby Figure 39 shows with stacking five cylindrical batteries 917 of inner chamber of complying with the shaped form cross section profile of battery pack of curved arrays.In addition, commercially available tabular rechargeable battery 927 is by flexible positive plate and minus plate or be folded with polymer electrolyte and the anode strip of parting material, cathode sheets form.Anode strip and battery positive terminal are electrically connected and cathode sheets is connected with the GND terminal, and these anode strips and cathode sheets can be connected in series or in parallel with the formation battery pack.These plate batteries are flexible and they can be stacked on over each other.Figure 40 shows and is stacked on over each other and bends to three plate batteries 927 of the inner chamber of the shaped form cross section profile of complying with battery pack.
With reference to Figure 41 to Figure 43, wherein the mode with the cross section shows the annular battery group 920 with hollow circle tube inner surface 922, and this battery pack 920 is suitable for surrounding the waste rexeptacle 120 of Cyclonic separating apparatus 8.This annular battery group has circle tube inner wall 922 and cylindrical outer wall 926.
Figure 41 shows and is arranged to circular array with 12 cylindrical batteries 917 of the inner chamber of the ring section profile of complying with annular battery group 920.
Figure 42 shows and is stacked on over each other and bends to the hollow circle tube shape with three plate batteries 927 of the inner chamber of the ring section of complying with annular battery group 920.
Figure 43 shows and is wound into the hollow circle tube shape with five plate batteries 927 of the inner chamber of the ring section of complying with annular battery group 920.
Crooked plate battery 927 has improved use to the inner chamber of battery pack 920 by eliminating the gap that naturally is present between the cylindrical battery 917.This has realized having the encapsulation of reduction and the more compact design of the battery pack of high-energy-density more.
Shaped form battery pack 900,910 and the shaped form inwall of annular battery group 920 or circle tube inner wall 902,922 surround waste rexeptacles 120 or they self be connected on the waste rexeptacle 120.This is conducive to for the new design alternative of holding battery with compact way.
It will be appreciated by those skilled in the art that: rechargeable battery can be the energy accumulator (comprising rechargeable lithium ion batteries, ni-mh or nickel-cadmium chargeable battery) for drive motor 16, any type of 216 and 416.
It will be appreciated by those skilled in the art that: comprise motor 16,216 and 416, fan 18,218 and 418 and concrete overall shape and the size of Cyclonic separating apparatus 8,208 and 408 structure can change according to the type that will use vacuum cleaner any in these structures.For example, each structure particularly total length or the width of Cyclonic separating apparatus can or reduce with respect to its diameter increase, and vice versa.
Particularly, the form by revising battery pack 910 is to be fit to the downside of waste rexeptacle 320, and the hand-holdable formula vacuum cleaner 702 of Figure 33 and Figure 34 can be modified to motor 216, fan 218 and the Cyclonic separating apparatus 208 that comprises this embodiment.Flexible hose 170 will need to prolong to be wound up on waste rexeptacle 320, central housing 226 and the motor 228.
In addition, by replacing main support 805 with central housing 226 and motor field frame 228, the hand-holdable formula vacuum cleaner 802 of Figure 35 and Figure 38 can be modified to motor 216, fan 218 and the Cyclonic separating apparatus 208 that comprises the second embodiment.This can be by being directly connected to elongate body 804 on the central housing 226 to replace handle 206 and support 805 to realize.The exit passageway 260 of Cyclonic separating apparatus will need to prolong to form enough gaps of support wheel 807 and bearing 809 encirclement waste rexeptacles 320.
The motor 16 of above-mentioned discussion, 216 and 416 is typical DC electromotor with brush that its driving shaft 20,220 and 420 directly engages with centrifugal fan 18,218 and 418.The driving shaft of this motor has that turn (rpm) in revolutions per minute be rotating speed in 25,000 to 40,000 the scope.External diameter with centrifugal fan of the rotating speed in this scope is about twice of the external diameter of motor tank, in order to have enough tip speeds pass Cyclonic separating apparatus with generation volume required flow velocity.It will be appreciated by those skilled in the art that: motor 16,216 and 416 can be dc motor, ac motor or the polyphase asynchronous motor by electronic circuit control.Permanent magnet brushless electromotor, switched reluctance motor, Magneticflux-switching type reluctance motor or other brushless motor type can have the high rotating speed in 80,000 to 120,000rpm scopes.If use this high-speed motor, then fan diameter can reduce by half at least and still can produce the volume required flow velocity that passes Cyclonic separating apparatus, and this is because the very high cause of tip speed of fan.If motor moves under the rotating speed of the Near The Upper Limit of high engine speed range, then will so that the external diameter of fan equates with the external diameter of motor tank and the possible so that external diameter of fan less than the external diameter of motor tank.The fan of the small diameter that moves under the rotating speed in this high engine speed range is generally impeller, although it can be tube-axial fan or centrifugal fan.The outline of the fan of the small diameter that engages with the driving shaft of pot-motor will be the outline of general cylindrical shape.This provides the additional flexibility of the layout of Cyclonic separating apparatus.
In the accompanying drawings in the modification of unshowned Cyclonic separating apparatus 8, the first or second embodiment of 208, cyclone separator 84,284 can be arranged to hold high rotating speed permanent magnet brushless electromotor, switched reluctance motor or the Magneticflux-switching type reluctance motor that engages with fan, and this fan is coaxial with motor and external diameter this fan equates basically with the external diameter of motor or less than the external diameter of motor.The outline of the general cylindrical shape of high-speed motor and fan can embed Cyclonic separating apparatus and troop and be the circular array among cyclone separator.Air-flow can be directed to the axial entrance of fan and discharges from the tangential outlet of fan by deflector.High-speed motor and fan can be positioned on the circumference of circular array, in this case, can discharge and be exported Cyclonic separating apparatus from a side of this circular array from the air-flow of fan.High-speed motor and fan can be embedded at the middle part of this circular array or this near middle, in this case, can discharge and be exported Cyclonic separating apparatus from an end of this circular array from the air-flow of fan.If high-speed motor and fan are embedded in the circular array of the whirlwind separator that tilts with respect to central axis (for example modification of the disclosed whirlwind separator of GB 2440 110A), then can discharge from an end of the circular array of whirlwind separator or the gap of passing between the whirlwind separator from the air-flow of fan.

Claims (14)

1. structure that is used for motor, fan and the Cyclonic separating apparatus of vacuum cleaner (2,602,702,802), described structure comprises:
Motor (16), it engages with fan (18) for generation of air-flow;
Cyclonic separating apparatus (8), it is arranged in the path of the air-flow that is produced by described fan; And
Preposition fan filter (40), its be arranged in described Cyclonic separating apparatus the downstream air flow path and be positioned at the upstream of described fan (18),
Wherein, described Cyclonic separating apparatus comprises at least one cyclone separator (84), and described cyclone separator comprises:
Cyclone body (85,86), it has longitudinal axis (57);
Air intake (88), it is arranged to tangentially pass a side of described cyclone body; And
Air outlet slit (56), it passes the longitudinal end of described cyclone body,
Wherein, described preposition fan filter (40) is positioned at above the air outlet slit (56) of described or each cyclone separator.
2. structure according to claim 1 (16,18,8), wherein,
Air outlet slit (56) described or each cyclone separator (84) passes the swirler (54) that is arranged on the inner correspondence of described cyclone body (85,86), and described swirler comprises the vertical internal rib that is arranged to around the array of the inner surface of described swirler, and described vertical internal rib is set to the axis almost parallel with described cyclone body.
3. according to the described structure of aforementioned each claim (16,18,8), wherein, described Cyclonic separating apparatus (8) comprising:
The first cyclone type separative element (160), it comprises general cylindrical shape waste rexeptacle (120,130) and the air intake (126) of hollow, described waste rexeptacle has central axis (21), and described air intake is arranged to tangentially pass a side of described waste rexeptacle; And
The second cyclone type separative element (150), it comprises described at least one cyclone separator (84), and wherein, described or each cyclone separator comprises discharge nozzle (87), described discharge nozzle is arranged on the longitudinal end opposite with described air outlet slit (56) of described cyclone body
Wherein, described the second cyclone type separative element receives air-flow in the downstream of described the first cyclone type separative element, and described the second cyclone type separative element and described preposition fan filter (40) are positioned at the inside of described waste rexeptacle.
4. structure according to claim 3 (16,18,8), wherein,
Described at least one cyclone separator (84) comprises a plurality of cyclone separators (84) that are arranged to around the circular array of the central axis of described waste rexeptacle, and described preposition fan filter has the ring section profile of the central axis (21) perpendicular to described waste rexeptacle, described Cyclonic separating apparatus comprises the cooling blast path (61a, 61b) of the circular array that is arranged in described cyclone separator, and described motor is embedded in the circular array of described cyclone separator and described motor is arranged in described cooling blast path.
5. structure according to claim 4 (16,18,8), wherein,
The part of described motor (16) is embedded in the ring section profile of described preposition fan filter (40).
6. according to claim 4 or 5 described structures (16,18,8), wherein,
Described a plurality of cyclone separator (84) is at least eight cyclone separators that are arranged to have the circular array of interior ring and outer shroud, the diameter of described interior ring be described outer shroud diameter at least 30%.
7. each described structure (16,18,8) in 6 according to claim 4, wherein,
The circular array of described cyclone separator (84) is axially symmetrical and described motor (16) is concentric with the central axis (21) of described waste rexeptacle.
8. each described structure (16,18,8) in 7 according to claim 4, wherein,
Described motor be used for enhanced flow and engage through the servicing unit (18,26) of the cooling-air of described cooling blast path (61a, 61b).
9. each described structure (16,18,8) in 8 according to claim 4, wherein,
The external diameter of described motor (16) be described waste rexeptacle (120) external diameter at least 15%.
10. each described structure (16,18,8) in 9 according to claim 4, wherein,
Described the second cyclone type separative element (150) has than the high separative efficiency of described the first cyclone type separative element (160).
11. each described structure (16,18,8) in 10 according to claim 4, wherein,
Described Cyclonic separating apparatus (8) comprises the midfeather (66,82,90,110) that is arranged in the described waste rexeptacle, and described midfeather surrounds the air intake of described cyclone separator (84).
12. structure according to claim 11 (16,18,8), wherein,
Described midfeather (66,82,90) limits the chamber (170) with ventilative wall (90), described ventilative wall cloth is put the air outlet slit as described the first cyclone type separative element (160), and described the second cyclone type separative element receives air-flow in the downstream of described the first cyclone type separative element via described chamber.
13. each described structure (16 in 12 according to claim 4,18,8), wherein, the deposition of material that described the first cyclone type separative element (160) and described the second cyclone type separative element (150) are arranged to go out from flow separation is at described waste rexeptacle (120,130) in the longitudinal end, wherein said Cyclonic separating apparatus (8) comprises the funnel (110) that is arranged to collect the material that is separated by described cyclone separator (84), and described funnel has towards described waste rexeptacle (120,130) cone-shaped wall of convergent (114), with will be by deposition of material that described cyclone separator was separated in the following zone of described waste rexeptacle: described zone be by described funnel and isolated with the air-flow in described the first cyclone type separative element (160).
14. a vacuum cleaner (2,602,702,802), it comprises the structure according to the described motor of aforementioned each claim (16), fan (18) and Cyclonic separating apparatus (8).
CN201210387916.8A 2011-10-12 2012-10-12 The structure of motor, fan and Cyclonic separating apparatus Expired - Fee Related CN103040412B (en)

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EP11184787.7A EP2581017B1 (en) 2011-10-12 2011-10-12 A motor, fan and cyclonic seperation apparatus arrangement
EP11184787.7 2011-10-12

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EP2581017B1 (en) 2019-11-20
US20130091810A1 (en) 2013-04-18
AU2012238315B2 (en) 2016-12-15
CA2791567A1 (en) 2013-04-12

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